I tried to run Tomb Raider with openglide by following the tutorial here: viewtopic.php?f=32&t=21839Now, that tutorial is outdated, as it was intended for version 0.73, but I made it work for version 0.74 by downloading and building the current version of dosbox and openglide, and using the latest dosbox_glide.diff patch.

My framerate is now at a 30 fps constant so I'm quite happy with it, but I have some artifacts, as you can see below: some polygons are darker (or lighter) than they should be:

I use a computer with an embedded sound chip and an ATI Polaris graphics card.I'm on Debian unstable.The game is The Steam version of the game.The problem is always reproducible.I use output=opengl and glide=true on the dosboxTRLinux.conf file, just like Steam configures it.I haven't read the README, because I don't know where to find it

Now, I'm not really sure what I could change or what information I could provide, I'll take any help Thx for your time.

[sdl]# fullscreen: Start dosbox directly in fullscreen. (Press ALT-Enter to go back)# fulldouble: Use double buffering in fullscreen. It can reduce screen flickering, but it can also result in a slow DOSBox.# fullresolution: What resolution to use for fullscreen: original or fixed size (e.g. 1024x768).# Using your monitor's native resolution with aspect=true might give the best results.# If you end up with small window on a large screen, try an output different from surface.# windowresolution: Scale the window to this size IF the output device supports hardware scaling.# (output=surface does not!)# output: What video system to use for output.# Possible values: surface, overlay, opengl, openglnb, openglhq, ddraw, direct3d.# autolock: Mouse will automatically lock, if you click on the screen. (Press CTRL-F10 to unlock)# sensitivity: Mouse sensitivity.# waitonerror: Wait before closing the console if dosbox has an error.# priority: Priority levels for dosbox. Second entry behind the comma is for when dosbox is not focused/minimized.# pause is only valid for the second entry.# Possible values: lowest, lower, normal, higher, highest, pause.# mapperfile: File used to load/save the key/event mappings from. Resetmapper only works with the defaul value.# pixelshader: Pixelshader program (effect file must be in Shaders subdirectory).# usescancodes: Avoid usage of symkeys, might not work on all operating systems.# overscan: Width of overscan border. (works if output=surface)

[dosbox]# language: Select another language file.# machine: The type of machine DOSBox tries to emulate.# Possible values: hercules, cga, tandy, pcjr, ega, vgaonly, svga_s3, svga_et3000, svga_et4000, svga_paradise, vesa_nolfb, vesa_oldvbe.# vmemsize: Amount of video memory in megabytes.# The maximum resolution and color depth the svga_s3 will be able to display# is determined by this value.# 0: 512k (800x600 at 256 colors)# 1: 1024x768 at 256 colors or 800x600 at 64k colors# 2: 1600x1200 at 256 colors or 1024x768 at 64k colors or 640x480 at 16M colors# 4: 1600x1200 at 64k colors or 1024x768 at 16M colors# 8: up to 1600x1200 at 16M colors# For build engine games, use more memory than in the list above so it can# use triple buffering and thus won't flicker.# # captures: Directory where things like wave, midi, screenshot get captured.# memsize: Amount of memory DOSBox has in megabytes.# This value is best left at its default to avoid problems with some games,# though few games might require a higher value.# There is generally no speed advantage when raising this value.

language=machine=svga_s3vmemsize=4captures=capturememsize=16

[log]# logfile: file where the log messages will be saved to# vga: Enable/Disable logging of this type.# vgagfx: Enable/Disable logging of this type.# vgamisc: Enable/Disable logging of this type.# int10: Enable/Disable logging of this type.# sblaster: Enable/Disable logging of this type.# dma_control: Enable/Disable logging of this type.# fpu: Enable/Disable logging of this type.# cpu: Enable/Disable logging of this type.# paging: Enable/Disable logging of this type.# fcb: Enable/Disable logging of this type.# files: Enable/Disable logging of this type.# ioctl: Enable/Disable logging of this type.# exec: Enable/Disable logging of this type.# dosmisc: Enable/Disable logging of this type.# pit: Enable/Disable logging of this type.# keyboard: Enable/Disable logging of this type.# pic: Enable/Disable logging of this type.# mouse: Enable/Disable logging of this type.# bios: Enable/Disable logging of this type.# gui: Enable/Disable logging of this type.# misc: Enable/Disable logging of this type.# io: Enable/Disable logging of this type.# pci: Enable/Disable logging of this type.

[render]# frameskip: How many frames DOSBox skips before drawing one.# aspect: Do aspect correction, if your output method doesn't support scaling this can slow things down!.# linewise: Draw the display line by line. Needed for certain special graphics effects in games and demos. Can be changed at runtime but will be put in effect at the next mode switch.# char9: Allow 9-pixel wide text mode fonts.# multiscan: Set this value to true to allow zooming gfx effects used in demos. It will disable several options such as scalers though.# scaler: Scaler used to enlarge/enhance low resolution modes. If 'forced' is appended,# then the scaler will be used even if the result might not be desired.# Possible values: none, normal2x, normal3x, advmame2x, advmame3x, advinterp2x, advinterp3x, hq2x, hq3x, 2xsai, super2xsai, supereagle, tv2x, tv3x, rgb2x, rgb3x, scan2x, scan3x, hardware2x, hardware3x.

[cpu]# core: CPU Core used in emulation. auto will switch to dynamic if available and# appropriate.# Possible values: auto, dynamic, normal, full, simple.# cputype: CPU Type used in emulation. auto emulates a 486 which tolerates Pentium instructions.# Possible values: auto, 386, 486, pentium, 386_prefetch.# cycles: Amount of instructions DOSBox tries to emulate each millisecond.# Setting this value too high results in sound dropouts and lags.# Cycles can be set in 3 ways:# 'auto' tries to guess what a game needs.# It usually works, but can fail for certain games.# 'fixed #number' will set a fixed amount of cycles. This is what you usually# need if 'auto' fails (Example: fixed 4000).# 'max' will allocate as much cycles as your computer is able to# handle.# Possible values: auto, fixed, max.# cycleup: Amount of cycles to decrease/increase with keycombos.(CTRL-F11/CTRL-F12)# cycledown: Setting it lower than 100 will be a percentage.

core=autocputype=autocycles=autocycleup=10cycledown=20

[mixer]# nosound: Enable silent mode, sound is still emulated though.# swapstereo: Swaps the left and right stereo channels.# rate: Mixer sample rate, setting any device's rate higher than this will probably lower their sound quality.# Possible values: 44100, 48000, 32000, 22050, 16000, 11025, 8000, 49716.# blocksize: Mixer block size, larger blocks might help sound stuttering but sound will also be more lagged.# Possible values: 1024, 2048, 4096, 8192, 512, 256.# prebuffer: How many milliseconds of data to keep on top of the blocksize.

[parallel]# parallel1: parallel1-3 -- set type of device connected to lpt port.# Can be:# reallpt (direct parallel port passthrough using Porttalk),# file (records data to a file or passes it to a device),# printer (virtual dot-matrix printer, see [printer] section)# Additional parameters must be in the same line in the form of# parameter:value.# for reallpt:# Windows:# realbase (the base address of your real parallel port).# Default: 378# ecpbase (base address of the ECP registers, optional).# Linux: realport (the parallel port device i.e. /dev/parport0).# for file: # dev:<devname> (i.e. dev:lpt1) to forward data to a device,# or append:<file> appends data to the specified file.# Without the above parameters data is written to files in the capture dir.# Additional parameters: timeout:<milliseconds> = how long to wait before# closing the file on inactivity (default:500), addFF to add a formfeed when# closing, addLF to add a linefeed if the app doesn't, cp:<codepage number># to perform codepage translation, i.e. cp:437# for printer:# printer still has it's own configuration section above.# parallel2: see parallel1# parallel3: see parallel1

[ne2000]# ne2000: Enable Ethernet passthrough. Requires [Win]Pcap.# nicbase: The base address of the NE2000 board.# nicirq: The interrupt it uses. Note serial2 uses IRQ3 as default.# macaddr: The physical address the emulator will use on your network.# If you have multiple DOSBoxes running on your network,# this has to be changed for each. AC:DE:48 is an address range reserved for# private use, so modify the last three number blocks.# I.e. AC:DE:48:88:99:AB.# realnic: Specifies which of your network interfaces is used.# Write 'list' here to see the list of devices in the# Status Window. Then make your choice and put either the# interface number (2 or something) or a part of your adapters# name, e.g. VIA here.

ne2000=truenicbase=300nicirq=3macaddr=AC:DE:48:88:99:AArealnic=list

[autoexec]# Lines in this section will be run at startup.# You can put your MOUNT lines here.

# This is the configuration file for DOSBox SVN. (Please use the latest version of DOSBox)# Lines starting with a # are comment lines and are ignored by DOSBox.# They are used to (briefly) document the effect of each option.

[sdl]# fullscreen: Start dosbox directly in fullscreen. (Press ALT-Enter to go back)# fulldouble: Use double buffering in fullscreen. It can reduce screen flickering, but it can also result in a slow DOSBox.# fullresolution: What resolution to use for fullscreen: original, desktop or a fixed size (e.g. 1024x768).# Using your monitor's native resolution with aspect=true might give the best results.# If you end up with small window on a large screen, try an output different from surface.On Windows 10 with display scaling (Scale and layout) set to a value above 100%, it is recommended# to use a lower full/windowresolution, in order to avoid window size problems.# windowresolution: Scale the window to this size IF the output device supports hardware scaling.# (output=surface does not!)# output: What video system to use for output.# Possible values: surface, overlay, opengl, openglnb.# autolock: Mouse will automatically lock, if you click on the screen. (Press CTRL-F10 to unlock)# sensitivity: Mouse sensitivity.# waitonerror: Wait before closing the console if dosbox has an error.# priority: Priority levels for dosbox. Second entry behind the comma is for when dosbox is not focused/minimized.# pause is only valid for the second entry.# Possible values: lowest, lower, normal, higher, highest, pause.# mapperfile: File used to load/save the key/event mappings from. Resetmapper only works with the default value.# usescancodes: Avoid usage of symkeys, might not work on all operating systems.

[dosbox]# language: Select another language file.# machine: The type of machine DOSBox tries to emulate.# Possible values: hercules, cga, tandy, pcjr, ega, vgaonly, svga_s3, svga_et3000, svga_et4000, svga_paradise, vesa_nolfb, vesa_oldvbe.# captures: Directory where things like wave, midi, screenshot get captured.# memsize: Amount of memory DOSBox has in megabytes.# This value is best left at its default to avoid problems with some games,# though few games might require a higher value.# There is generally no speed advantage when raising this value.

language = machine = svga_s3captures = capturememsize = 16

[render]# frameskip: How many frames DOSBox skips before drawing one.# aspect: Do aspect correction, if your output method doesn't support scaling this can slow things down!# scaler: Scaler used to enlarge/enhance low resolution modes. If 'forced' is appended,# then the scaler will be used even if the result might not be desired.# To fit a scaler in the resolution used at full screen may require a border or side bars,# to fill the screen entirely, depending on your hardware, a different scaler/fullresolution might work.# Possible values: none, normal2x, normal3x, advmame2x, advmame3x, advinterp2x, advinterp3x, hq2x, hq3x, 2xsai, super2xsai, supereagle, tv2x, tv3x, rgb2x, rgb3x, scan2x, scan3x.

frameskip = 0aspect = falsescaler = normal2x

[cpu]# core: CPU Core used in emulation. auto will switch to dynamic if available and# appropriate.# Possible values: auto, dynamic, normal, simple.# cputype: CPU Type used in emulation. auto is the fastest choice.# Possible values: auto, 386, 386_slow, 486_slow, pentium_slow, 386_prefetch.# cycles: Amount of instructions DOSBox tries to emulate each millisecond.# Setting this value too high results in sound dropouts and lags.# Cycles can be set in 3 ways:# 'auto' tries to guess what a game needs.# It usually works, but can fail for certain games.# 'fixed #number' will set a fixed amount of cycles. This is what you usually# need if 'auto' fails (Example: fixed 4000).# 'max' will allocate as much cycles as your computer is able to# handle.# Possible values: auto, fixed, max.# cycleup: Amount of cycles to decrease/increase with keycombos.(CTRL-F11/CTRL-F12)# cycledown: Setting it lower than 100 will be a percentage.

[midi]# mpu401: Type of MPU-401 to emulate.# Possible values: intelligent, uart, none.# mididevice: Device that will receive the MIDI data from MPU-401.# Possible values: default, win32, alsa, oss, coreaudio, coremidi, none.# midiconfig: Special configuration options for the device driver. This is usually the id or part of the name of the device you want to use (find the id/name with mixer/listmidi).# Or in the case of coreaudio, you can specify a soundfont here.# When using a Roland MT-32 rev. 0 as midi output device, some games may require a delay in order to prevent 'buffer overflow' issues.# In that case, add 'delaysysex', for example: midiconfig=2 delaysysex# See the README/Manual for more details.

My build on Ubuntu is fine. I use SVN version and several different releases, for eg. r3868, r4095 and the recent r4160. My test machines are having either entry-level NVIDIA graphics or Intel HD series.You may want to look at fixing the following warning message."Glide:Detected incompatible guest ovl/dll!"

You may also want to try getting DOSBox compiled with 3Dfx voodoo1 chip emulation. In that case, you do not need OpenGlide, but you need GLIDE2X.OVL from real 3Dfx Voodoo driver releases. This is slower than using OpenGlide, and it is even slower on Linux if you happened to compile DOSBox for x64 build. However, if you have a decent CPU, then it really does not matter, especially for desktop class CPU.

kjliew wrote:My build on Ubuntu is fine. I use SVN version and several different releases, for eg. r3868, r4095 and the recent r4160. My test machines are having either entry-level NVIDIA graphics or Intel HD series.You may want to look at fixing the following warning message."Glide:Detected incompatible guest ovl/dll!"

You may also want to try getting DOSBox compiled with 3Dfx voodoo1 chip emulation. In that case, you do not need OpenGlide, but you need GLIDE2X.OVL from real 3Dfx Voodoo driver releases. This is slower than using OpenGlide, and it is even slower on Linux if you happened to compile DOSBox for x64 build. However, if you have a decent CPU, then it really does not matter, especially for desktop class CPU.

About "Glide:Detected incompatible guest ovl/dll!", I have no idea how I could fix that, or where I should look. Could it be the GLIDE2X.OVL bundled with steam version of the game? Any help appreciated.

I didn't know about the 3Dfx stuff, thanks for letting me know, I'll try that next if I'm still stuck.

LD_LIBRARY_PATH=/usr/local/lib dosbox -conf dosboxTRLinux.conf DOSBox version SVNCopyright 2002-2018 DOSBox Team, published under GNU GPL.---CONFIG:Loading primary settings from config file dosboxTRLinux.conf"openglhq" is not a valid value for variable: output.It might now be reset to the default value: surface"hardware2x" is not a valid value for variable: type.It might now be reset to the default value: normal2xMIXER: Got different values from SDL: freq 44100, blocksize 512ALSA:Can't subscribe to MIDI port (65:0) nor (17:0)MIDI: Opened device:noneGlide:LFB access: read-writeDOSBox has switched to max cycles, because of the setting: cycles=auto.If the game runs too fast, try a fixed cycles amount in DOSBox's options.Glide:ActivatedGlide:Resolution:640x480, LFB at 0x60000000 (physical) / 0x60000000 (linear)Segmentation fault

Thanks a lot, that fixed that particular issue, but I have another problem. The video at the start of the game (with the snake in the desert) plays fine, but the ones that should play right before going to Lara's mansion or starting a game (after the circular menu) are just a black screen. I can hear the audio tho. Any idea?

zikafi wrote: The video at the start of the game (with the snake in the desert) plays fine, but the ones that should play right before going to Lara's mansion or starting a game (after the circular menu) are just a black screen. I can hear the audio tho. Any idea?

Did you happen to use "output=opengl" or " output=openglnb" again? I think that was still a problem only on Linux when OpenGL switching context from OpenGlide back to DOSBox. It may also depend on the Linux OpenGL implementation on your GPU. Nothing wrong with the in-game video, if you happen to go into Lara's mansion twice, the video would only show on 1st time and black screen on the 2nd. I remember using "output=surface" should fix this.

If you still get segmentation fault after using "output=surface", then try the following fix in src/gui/sdlmain.cpp:<< #define SETMODE_SAVES 1>> #define SETMODE_SAVES 0

kjliew wrote:Did you happen to use "output=opengl" or " output=openglnb" again? I think that was still a problem only on Linux when OpenGL switching context from OpenGlide back to DOSBox. It may also depend on the Linux OpenGL implementation on your GPU. Nothing wrong with the in-game video, if you happen to go into Lara's mansion twice, the video would only show on 1st time and black screen on the 2nd. I remember using "output=surface" should fix this.

I use opengl because its the only one that goes ingame, using any other option segfaults when leaving the circular menu.

kjliew wrote:If you still get segmentation fault after using "output=surface", then try the following fix in src/gui/sdlmain.cpp:<< #define SETMODE_SAVES 1>> #define SETMODE_SAVES 0